The Ali G star fooled the right-wing Republican by posing as a former soldier for a sit-down chat.

Palin lashed out in a Facebook post, claiming he “heavily disguised himself as a disabled US veteran, fake wheelchair and all”.

The former US vice presidential candidate said: “Ya’ got me, Sacha, feel better now? I join a long list of American public personalities who have fallen victim to the evil, exploitive, sick ‘humour’ of the British ‘comedian’ Sacha Baron Cohen, enabled and sponsored by CBS/Showtime.”

Livid Palin claims she eventually got so tired of his questions she took off her microphone and walked out of the interview.

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JOKER: Baron Cohen

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TARGET: Politician Palin

The 54-year-old has also alleged that the show’s producers dropped her and her daughter off at the wrong airport deliberately.

She has now demanded the comic and Showtime give profits from the series to “a charitable group that actually respects and supports American vets”.

The new series Who Is America? begins on Sunday in the US, with Channel 4 then showing it in the UK on Monday.